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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.hessian.component;
import java.net.MalformedURLException;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import org.apache.tuscany.hessian.Channel;
import org.apache.tuscany.hessian.DestinationCreationException;
import org.apache.tuscany.hessian.InvalidDestinationException;
import org.apache.tuscany.hessian.InvokerInterceptor;
import org.apache.tuscany.hessian.ServletHostNotFoundException;
import org.apache.tuscany.hessian.channel.HttpChannel;
import org.apache.tuscany.hessian.channel.LocalChannel;
import org.apache.tuscany.hessian.destination.HttpDestination;
import org.apache.tuscany.hessian.destination.LocalDestination;
import org.apache.tuscany.spi.host.ServletHost;
import org.apache.tuscany.spi.model.physical.PhysicalOperationDefinition;
import org.apache.tuscany.spi.wire.InvocationChain;
import org.apache.tuscany.spi.wire.Wire;
import org.osoa.sca.annotations.Property;
import org.osoa.sca.annotations.Reference;
/**
* Binding component for hessian transport.
*/
public class HessianBindingComponent {
public static String LOCAL_SCHEME = "hessianLocal";
public static String HTTP_SCHEME = "http";
private URI uri;
private ServletHost servletHost;
private Map<URI, LocalDestination> destinations;
public HessianBindingComponent(@Property(name = "uri")
URI uri, @Reference(name = "servletHost")
ServletHost host) {
this.uri = uri;
this.servletHost = host;
destinations = new HashMap<URI, LocalDestination>();
}
public void createEndpoint(URI endpointUri, Wire wire, ClassLoader loader) throws DestinationCreationException {
if (LOCAL_SCHEME.equals(endpointUri.getScheme())) {
LocalDestination destination = new LocalDestination(wire, loader);
destinations.put(uri, destination);
} else if (HTTP_SCHEME.equals(endpointUri.getScheme())) {
if (servletHost == null) {
throw new ServletHostNotFoundException("ServletHost is was not found");
}
HttpDestination destination = new HttpDestination(wire, loader);
// FIXME mapping
servletHost.registerMapping(endpointUri.getPath(), destination);
} else {
throw new UnsupportedOperationException("Unsupported scheme");
}
}
public void bindToEndpoint(URI endpointUri, Wire wire) throws InvalidDestinationException {
Channel channel = createChannel(endpointUri);
for (Map.Entry<PhysicalOperationDefinition, InvocationChain> entry : wire.getPhysicalInvocationChains()
.entrySet()) {
String name = entry.getKey().getName();
InvokerInterceptor interceptor = new InvokerInterceptor(name, channel);
entry.getValue().addInterceptor(interceptor);
}
}
/**
* Creates a Channel to the service at the given URI
*
* @param uri the service uri
* @return the channel
* @throws InvalidDestinationException if an error is encountered creating
* the channel
*/
private Channel createChannel(URI uri) throws InvalidDestinationException {
if (LOCAL_SCHEME.equals(uri.getScheme())) {
LocalDestination destination = destinations.get(uri);
if (destination != null) {
throw new InvalidDestinationException("Destination not found", uri.toString());
}
return new LocalChannel(destination);
} else if (HTTP_SCHEME.equals(uri.getScheme())) {
try {
return new HttpChannel(uri.toURL());
} catch (MalformedURLException e) {
throw new InvalidDestinationException("URI must be a valid URL ", e);
}
}
throw new UnsupportedOperationException("Unsupported scheme");
}
}
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